My adult son is the most happy person I know but often makes angry faces. He also has night terrors. Nightmares he doesn't remember. In ny gut I think there is

My adult son is the most happy person I know but often makes angry faces. He also has night terrors. Nightmares he doesn't remember. In ny gut I think there is a relationship between his happy nature and not knowing how to be angry. It's kind of like he doesn't have a middle ground of being angry.It's his happy face 90% of the time, then super angry face when annoyed. An angry face which is not really representative of who he is.